/Engine/Source/Developer/SourceControl/Public/ISourceControlState.h
Find an item from the history with the specified revision.
a history item or NULL if the item could not be found
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< class [ISourceControlRevision](API\Developer\SourceControl\ISourceControlRevision), ESPMode::ThreadSafe > FindHistoryRevision ( const [FString](API\Runtime\Core\Containers\FString) & InRevision ) const